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53478470725 = 522139138829
BaseRepresentation
bin110001110011100100…
…001011010001000101
312010001000011210101221
4301303210023101011
51334010442030400
640322341120341
73602150333551
oct616344132105
9163030153357
1053478470725
1120753225649
12a4459b90b1
13507360bb24
1428346c6861
1515cee4cc1a
hexc7390b445

53478470725 has 6 divisors (see below), whose sum is σ = 66313303730. Its totient is φ = 42782776560.

The previous prime is 53478470719. The next prime is 53478470761. The reversal of 53478470725 is 52707487435.

It can be written as a sum of positive squares in 3 ways, for example, as 12977310724 + 40501160001 = 113918^2 + 201249^2 .

It is not a de Polignac number, because 53478470725 - 217 = 53478339653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1069569390 + ... + 1069569439.

Almost surely, 253478470725 is an apocalyptic number.

It is an amenable number.

53478470725 is a deficient number, since it is larger than the sum of its proper divisors (12834833005).

53478470725 is a wasteful number, since it uses less digits than its factorization.

53478470725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139138839 (or 2139138834 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 52.

The spelling of 53478470725 in words is "fifty-three billion, four hundred seventy-eight million, four hundred seventy thousand, seven hundred twenty-five".

Divisors: 1 5 25 2139138829 10695694145 53478470725